Apply for a Carbon Accountant API

Built for organisations working directly with company emissions data: reporting, benchmarking, and client advisory. Tell us about your accountancy and we'll be in touch with next steps.

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Tell us about your accountancy

We'll review and come back to you with the appropriate licence and access tier within a few business days.

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What you're applying for

Carbon Accountant API access

Free or reduced API access depending on portfolio size and how many of your clients disclose through Mycelium.
Programmatic access to company-level carbon data for reporting and benchmarking workflows.
Governed by the Carbon Accountant API Licence. Please review before applying.
Commercial terms apply where the data is integrated into client-facing platforms.